herotizky



' ELECTRIC CLOCK.

FHM,

Inventor.

N. PETERS. mbumny-mnnwwingxm n t;

(No Model.) a y 3 Sheets-Sheet 2.

G. MEEROTIZKY.

ELECTRIC CLOCK. 110,293,613. Patented Feb. 12, 18811,

(No Model.) u 3 Sheets-.Sheet 3.

G. M. HBROTIZKY.

ELECTRIC GLOGK.

No. 293,613. 'Patentedeb 12, 1884.

.to the rod of the pendulum.

" UNITED STATES PATENT CEEIcE.

' GUSTAY MAXIMILIAX HEROTIZKY, OF I-IAIWIBURG, GER-MAXI.

ELECTRIC CLOCK.

SPECIFICATION forming part of Letters Patent No. 293,618, dated February 12, 1884. Application filed August 15, 1883. (No model.)

To @ZZ who/It t may concer/z.-

Be it known that l, GUsTkv MAXIMILIAN HERoTIZkY, a subject ot' the King of Saxony, and resident ot' Hamburg, in the German E1npire, have invented cert-ain new and useful Improvements in Electric Clocks, of which the'following is a speeication.

My invention relates to improvements in electric clocks which are driven by electric elements, and the objects ot' Iny improvements are, iirst, to give automatically once every minute an impulsion to the pendulum; and, second, to regulate the function of the electric current by means of the swinging pendulum. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l'is a front view of the electric clock. Fig. 2 is a side elevation. Figs. 3 to 9 are detailed views.

Similarletters refer to similar parts throughout the several views.

The pendulum A is suspended at the arm a.. A disk, b, indicating the seconds, is attached The bracket b2, fastened to the disk bears the pivot-pin b oi' the angle-lever b" Zi. The pawl b, which catches into the teeth ot' the ratchet-wheel bl, is attached to the extremity of the arm b". The other arm, b1, touches, when the pendulum A swings to the left, the weight b, suspended on a thread. This stop causes the peint of the pawl b to slide over the teeth of the wheel lf, which is Vheld from backward movement by the click b. Vhen the pendulum returnsfi. c., when it swings in the direction indicated by the arrow-the lever b" b5 attempts to go back to its normal position. Thereby the ratchet b catches into the teeth of the wheel b7 and turns it, whereby the hand b, fixed to the shaft ot' the ratchet-wheel, shows at the disk that a second has elapsed. The lever c, also fixed to the arbor ofthe ratchet-wheel Zf, serves to close the electric current of a galvanic bat tery, which passes through the bobbin C in the following manner: This lever c, rotating with the wheel 11T, is once every minute in such a position as to touch the arm cS of the disk c, which is pushed bythe spring cT toward the lever c. Then the pendulum swings in the direction oi" thc arrow, Fig. l, the disk c is turned by means of the lever' c, pushing for! ward the arm ci. Thereby the finger ci of the disk c comes into contact with the spring c',

being the two poles of the electric current passing the bobbin C. This current thus is closed and kept closed by the bow-shaped arrestinglever c, one end of which swings automaticallyin contact with the 'finger c* and remains there until the pendulum A returns to the lefthand side and the arm c, attached to the rod ofthe pendulum, touches the pin c5 ot' the lever c, when the latter gets out of contact with the finger ci, and the current is interrupted. The electric current formed by the contact of iinger c'l and spring c causes the core of the bobbin C to become Inagnetical, which consequently attracts the armature d of the lever d, and thereby lifts the lever d, resting, ordinarily, on the projection d. By the interruption of the current the lever d descends again, and its roller or transverse lpin dL touches the 'bracket d of the pendulum-rod, thus giving a new impulsion to the pendulum. Vhile the lever d was lifted the counter-weight j" raised the longer arm of the lever f, with the pawl f2, attached thereon. The descending lever d draws also the raised arm of the lever f downward,both levers being connected by the thread or wire ft. Thereby the pawl f3 catches into the wheel f, to the spindle of which the minute-hand of the clock is fixed, and so advances the minute-hand. The rotation ot' the minutewheel is communicated inthe well-known n1anner to the hour-wheel. An electric striking work is easily to be connected with the dialtrain. A lever with three arms, c c/ ci, is attached to the frame behind the dial. The minutc-wheel fi" is provided with one projection, et, when the clock strikes every hour. III a striking-train ot' every half an hour the wheel j"3 bears two, and in a striking-train oi' every quarter of an hour iour projections, c". The projection eL touches, during the rotation otl the wheel fi", for a moment, the movable incline e of the arm ci. In consequence thereof the arm cl is lowered and the other arm, c', raised, whereby the pin e, fastened 'to the cX- tremity of e, quits the groove of the wheel c, the proj ections of which regulate the number oi' strokes of the bell. The arm c thereby swings in the direction of the arrow, and causes the IOO io pendulum-rod, at every stroke of the pendu! lum in the direction of the arrow. The core ofthe bobbin E thus inagnetized attract-s the armature g5 of the lever g, Consequently the hammer of lever g strikes the bell gl at every I5 oscillation of the pendulum A. The motion of the lever also causes the rotation of the ratchet-Wheel el, fixed to the arbor of Wheel er. Consequently the latter is turned until the pin e falls into the next groove of this wheel,

2o and the lever e e e returns to its normal position, Fig. l, whereby the pin gl'slides again between the springs g g3, thus interrupting the electric current.

Having thus fully described my invent-ion,

What I desire to claim and secure by. Letters 1. In an electric clock, the combination, with a pendulum and an electric circuit, of the ratchet-Wheel bl, the angleilever bVL ba, the

paWl b, the suspended Weight bs, and the stop device consisting of the parts c, cs, c, c2, and

c, or their equivalents, all constructed and relatively arranged substantially as herein set v forth.

2. In an electric clock, the combination of 3,5v

the bobbin C with the pendulum A, the ratchet-wheel bl, the lever c, the disk c, With arm cs, and ringer c`, and spring c7, the contactspring c, and the arresting-lever c, substantially as and for the purpose specied. 4o 8. In an electric clock, the combination of the pendulum A, having bracket cl, and the inclined lever d, having armature d', and pin or roller cl2, with the magnet or bobbin C, and the stop cl, substantially as herein set forth. 4. In an electric clock, the combination of the minutefwheel f3 with the bobbin C, the lever d, the thread f4, the lever f, the counter- Weight f, and the ratclietpawl f2, substantially as set forth. 5o 5. In an electric clock, the combination of the bobbin E, the armature g5, the lever g,the pawl g, the ratchet-Wheel el, the disk e0, the lever c c ci, the minute-Wheel f3, the angle-lever g g', and the projection g2, with the con- 55 tact-springs g g, the pendulum A, and the pin 9*, substantially as and for the purpose specified.

In testimony that I claim the foregoing as my invention I have signed my name, in pres- 6o ence of tivo Witnesses, this 10th day of July, 1883.

GUSTAY MAXIMILIAN HEROIIZKI.

IITitnesses:

ALEXANDER SrncHs, EMIL T. HAAsn. 

